A) \[N{{H}_{3}}\]
B) \[{{N}_{2}}\]
C) \[NaCN\]
D) \[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]
Correct Answer: B
Solution :
Duma's method? In this method for estimation of nitrogen all the nitrogen present in organic compound is changed into\[{{N}_{2}}\]by heating over copper wire. \[\underset{from\text{ }organic\text{ }compound}{\mathop{{{N}_{2}}+C+2H+3CuO}}\,\xrightarrow[air]{\Delta }C{{O}_{2}}+{{H}_{2}}O+3Cu\] \[+{{N}_{2}}\] Kjeldahl?s method? In this method of estimation of nitrogen, the nitrogen is converted in\[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\].
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